For me this is really simple. I think the very best moment in a blowjob is the exact second that the woman your are with is fully intending to suck you. You've been getting more and more physical... (whether this is a first time with your partner or not) and she starts kissing your chest and slowly moving her hands down to the inside of your underwear. She continues slowly and there's that one moment as a guy when you realize that after all this teasing, she is definitely going to suck you. This is heaven.

My favorite moment in giving oral sex to a woman may be something similar. I like to tease and lick her thighs forever before I finally move her panties to the side and really begin. I love drawing this moment out to last as long as possible, then I love to just dive in. Damn.

My favorite moment while giving is the tease leading up to giving him a bj and that moment when you finally fully engulf him in your mouth...that always makes me smile...and the moment when he's just about to cum you can feel it building up and then it happens..that's as well another of my favorite moments.
For me getting oral my favorites are similar...the first time he lays his lips and tongue on me always makes me catch my breath and then of course when you feel that orgasm coming on.

Getting, other than cumming, two times:
- When I think that this incredibly hot woman is actually sucking my cock, and VERY well, and does so all the damn time.
- When it reaches the point of no return, that last minute.

right before the point of no return when she looks up to me telling me to cum in her mouth with her eyes and then she strokes the shaft to finish me off, and right when she starts and gets my dick nice and slippery.

My favorite moment while giving is the tease leading up to giving him a bj and that moment when you finally fully engulf him in your mouth...that always makes me smile...
For me getting oral my favorites are similar...the first time he lays his lips and tongue on me always makes me catch my breath

^I agree - it's the same situation during penetration for me, too. I love the moment when he finally slides all the way inside me and I feel that full feeling for the first time.

That sweet moment of desperation when the erotic tension and tortured anguish is so very intense that you can feel deep in your ass and in your balls that orgasm is imminent. At that rapturous moment you look down and realize that in seconds you are going to cum and it will be in her mouth. That is followed by that fraction of a moment when you feel the orgasm pulsing and squeezing deep inside you and you feel the first knot of cum being pushed out of you, but the cum has not worked up through your penis yet.